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G. LAVERE.

Lamp Burner.

Patented May 12, 1868.

GILBERT LAVERE, or BR'IDGEPORT, CONNECTICUT.

Lem Patent No. 77,821, dated May 12, 18 68.

IMPROVEMENT IN LAMPBURNERS.

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TO ALL WHOM IT MAY CONCERN: ,4 p a,

Be it known that I, GILBERT LAVERE, of Bridgeport, in thecounty of Fairfield, andStatc of Connecticut, have invented a new and useful Improvement in Lamp-Burhers3 and I do hereby declare that the following is a full, clear, and exact description thereof, wh ich will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a vertical central section of my improved burner, through the line a: x, fig. 3.

Figure 2 is a bottom view of the removable chambers.

Figure 3 is a plan view of the burner from a horizontal section through the chimney at the liney y, fig. 1.

Figure 4 is an enlarged view of the section of the burner, as shown at fig. 1.

Similar letters of reference indicate corresponding parts.

This invention consists in the combination of two chambers, forming an essential part of a burner for petroleum-lamps, together with other'deviccs, perfecting the whole, as will hereinafter be morefully set forth. In the drawings, a is the cap common to all petroleum-lamps, and the plate forming it also forms the top part ofthe central chamber 6, (through which the wick tube 11 passes,) and the annular chamber e, surrounding the central chamber, as shown. The bottom of the annular chamber is formed by a circular plate, 121, which projects beyond the said annular chamber, and forms a contracted opening, is, around the wick-tube d.

The object of the chamber e is to prevent the radiating and conduction of heat laterally against the walls of the chimney A, to which it is contiguous, for the air is permitted to circulate freely through thesaid chamber e, by the holes It latte, as shown. The dentral chamber supplies air to the flame for combustion, the said air passing into the chamber from below through. the contracted gorge or opening, 7c, around the wick. This gorge it is contracted, for the purpose of causing currents of air to enter the chamber through the lateral open ings a, which currents are thereby contiguous to and directly supply the flame at its lateral edges, which the burners as heretofore made fail to do.

The cylindrical wall g, which divides the interior space of the burner into two chambers, e and b, as store said, is scalloped or indented along its upper edges, as shown, for the purpose of allowing a free circulation of air into the chamber e. a

The burner, consisting ofihe capplate a and the bottom-plate m, forms one and the same general part, which is removable, for it rests upon the base-plate q, attached to and forming part of the neck 13, which screws into the topof the lamp in the usual manner. This plate (1 is provided on its upper surface with projections, 2', forthe purpose of fitting into corresponding recesses, 2", in the edge of the burner, as shown, whereby the latter is held in place, and is at thesame time removable for cleaning or other reasons. The said plate (7 is also perforated, as shown, for thepurpose of admitting air to the chamber 6.

I To insure more complete combustion of the oil, a metallic band, generallyof brass or copper, fits with easy contact upon the exterior of the wick-tube, as shown at T, which is adjusted so as to barely touch the lowest part of the flame. The heat which results i'rom this augmentationof metal at the upper part of the wick-tube, conduces to the combustion of the oil by aiding its conversion into gas. The chimney is held by means of spring-clamps Z, at the extremity of radial arms 11, projecting from the neck 13, asshown. These clamps, from their positive spring-action, clasp the lower edge, of the c himncy, as shown, and while holding it firmly, permit it to expand without breaking the glass.

The chimney is heldsolely by the clamps above described, and is not in contact with the burner, the-latter extending only near enough to the same to compel a sufficient quantity of air t o fecd the flame and accomplish complete combustion, to pass upward through the central chamber 6.

These various devices contribute to produce a burner which accomplishes a more complete combustion of the on than the burners heretofore used, and while it furnishes a larger and brighter flame for a given wicksurface, will burn with no diminution of its brilliancy till the whole of the oil is exhausted, It is inexpensive and simple, and not liable to. get out of repair.

Having described my invention; what I claim as new, and desire to secure by Letters Patent, is- I 1. The combination of the central chambe b with the annularehambene nndwiek-tube 02, substantially as s hbwn and-described, and for the purposes set forth. I 1 i 2. The renibvable burner, substantially as shown-and described, in combination with a. rest, q the said burner being so constructed as $6 be lifted ofi from the said i'est q;\vitl1out unscrewing, all as set forth. The above specification of my invention signed by me, this 7th day of January, 1868. I

GILBERT LAVERE. Witnesses: V

'WMQ. F. McNAMARA, ALEX. F. ROBERTS. 

